Alaska earthquakes

M3.7 earthquake 145 km WSW of Adak, Alaska

A magnitude 3.7 earthquake struck 145 km WSW of Adak, Alaska on Fri, Aug 9, 1996, 2:24 AM HADT (11:24 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M6.0 Andreanof Islands, Aleutian Islands, Alaska. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.7 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1996-08-09 11:24:59 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.474° N, 178.636° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from
OPERATOR_ASSIGNED

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 4.0145 km WSW of Adak, Alaska · 11010 days ago · 33 km deep · 9 km away
  2. 4.1134 km SW of Adak, Alaska · 11010 days ago · 33 km deep · 48 km away
  3. 4.2138 km WSW of Adak, Alaska · 11007 days ago · 33 km deep · 32 km away
  4. 6.0Andreanof Islands, Aleutian Islands, Alaska · 11001 days ago · 33 km deep · 19 km away
  5. 5.3129 km WSW of Adak, Alaska · 10999 days ago · 33 km deep · 16 km away
  6. 5.2126 km WSW of Adak, Alaska · 10999 days ago · 33 km deep · 28 km away
  7. 4.595 km SW of Adak, Alaska · 10995 days ago · 33 km deep · 61 km away
  8. 4.4127 km SW of Adak, Alaska · 10990 days ago · 33 km deep · 47 km away
  9. 4.3162 km WSW of Adak, Alaska · 10990 days ago · 33 km deep · 21 km away
  10. 5.5117 km WSW of Adak, Alaska · 10988 days ago · 44 km deep · 29 km away
  11. 5.1131 km WSW of Adak, Alaska · 10975 days ago · 33 km deep · 15 km away
  12. 4.3124 km SW of Adak, Alaska · 10969 days ago · 33 km deep · 82 km away

Before

  1. 4.5197 km WSW of Adak, Alaska · 11024 days ago · 33 km deep · 56 km away
  2. 4.5121 km SW of Adak, Alaska · 11027 days ago · 33 km deep · 48 km away
  3. 3.7206 km WSW of Adak, Alaska · 11029 days ago · 33 km deep · 61 km away
  4. 4.291 km W of Adak, Alaska · 11029 days ago · 33 km deep · 60 km away
  5. 3.8182 km W of Adak, Alaska · 11029 days ago · 33 km deep · 54 km away
  6. 4.7133 km WSW of Adak, Alaska · 11030 days ago · 33 km deep · 32 km away
  7. 5.181 km WSW of Adak, Alaska · 11032 days ago · 33 km deep · 67 km away
  8. 4.074 km SW of Adak, Alaska · 11035 days ago · 33 km deep · 78 km away
  9. 4.3171 km WSW of Adak, Alaska · 11035 days ago · 33 km deep · 35 km away
  10. 5.2101 km SW of Adak, Alaska · 11037 days ago · 33 km deep · 56 km away
  11. 4.089 km SW of Adak, Alaska · 11038 days ago · 33 km deep · 66 km away
  12. 4.290 km WSW of Adak, Alaska · 11039 days ago · 33 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0007nac. Read Thu, Oct 1, 2026, 8:26 PM UTC.